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102535104121 = 1761712977537
BaseRepresentation
bin101111101111110010…
…0011000011001111001
3100210122211212222022221
41133133210120121321
53134442441312441
6115034243044041
710256626001422
oct1373744303171
9323584788287
10102535104121
113a53743637a
1217a56970621
139890ab0158
144d69a0c649
152a01a9b8d1
hex17df918679

102535104121 has 16 divisors (see below), whose sum is σ = 108840820176. Its totient is φ = 96260161536.

The previous prime is 102535104109. The next prime is 102535104137. The reversal of 102535104121 is 121401535201.

It can be written as a sum of positive squares in 8 ways, for example, as 2954466025 + 99580638096 = 54355^2 + 315564^2 .

It is a cyclic number.

It is not a de Polignac number, because 102535104121 - 211 = 102535102073 is a prime.

It is a super-2 number, since 2×1025351041212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102535104521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13600465 + ... + 13608001.

It is an arithmetic number, because the mean of its divisors is an integer number (6802551261).

Almost surely, 2102535104121 is an apocalyptic number.

It is an amenable number.

102535104121 is a deficient number, since it is larger than the sum of its proper divisors (6305716055).

102535104121 is a wasteful number, since it uses less digits than its factorization.

102535104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 102535104121 its reverse (121401535201), we get a palindrome (223936639322).

The spelling of 102535104121 in words is "one hundred two billion, five hundred thirty-five million, one hundred four thousand, one hundred twenty-one".

Divisors: 1 17 617 1297 7537 10489 22049 128129 800249 4650329 9775489 13604233 79055593 166183313 6031476713 102535104121